董油

Product name: Tung oil Alias:Chinese wood oil CAS number:8001-20-5 H.S. code:1515903000 Applications: Mainly used in industries of paint, printing ink, water-proofing, anti-erosion, anti-rust, machinery, arms, electron, ships etc. Specification: Appearance:Transparent or Slightly turbid Color: 1)Not darker than a freshly prepared solution containing 0.4gm K2Cr2O7 in 100 ml pure conc. H2SO4 (SP.GR.1.84) 2) Or not darker than Gardner 9 Specific gravity (20/4°C): 0.9360--0.9395 Refractive index (20°C): 1.5170--1.5220 Iodine value (WIJS): 163--173 Saponification value: 190--195 Moisture & impurities: 0.3% max. Free fatty acid: 4% max. Worstall's Heat test: 7.5minutes max. Model Beta tung oil test: Negative (no crystalization)